All CEOI contests from 2005 to 2018 are now available for practice here:
You can either join a virtual contest (5 hours like the original contest) or just upsolve tasks.
All CEOI contests from 2005 to 2018 are now available for practice here:
You can either join a virtual contest (5 hours like the original contest) or just upsolve tasks.
Are editorials of these contests available?
For some contests there are editorials available on their websites.
Oh wow, I can now test how I would have done in CEOI 2012 which I missed since it clashed with IMO xD
That's awesome!